Plant Parasites of Europe

leafminers, galls and fungi

Populus x canadensis

hybrid black-poplar

synonym: Populus euramericana, gelrica, marilandica, regenerata, robusta, serotina

organparasitic modestagenotetaxonomic groupparasite
leafvagrantdoubtfulGeometridaeBoudinotiana notha
stemborerCossidaeCossus cossus
leafvagrantSphingidaeSmerinthus ocellata
stemborerBuprestidaeAgrilus suvorovi
stemborerBuprestidaeAgrilus ater
stemborerBuprestidaeAgrilus pratensis
stemvagrantadultAphrophoridaeAphrophora alni
leafvagrantdoubtfulCicadellidaeKybos strigilifer
stemborerCurculionidaeTrypophloeus binodulus
stemborerCurculionidaeTrypophloeus rybinskii
rootvagrantChrysomelidaeCrepidodera aurata
rootvagrantChrysomelidaeCrepidodera pluta
leafvagrantChrysomelidaePhratora laticollis
leafvagrantadultChrysomelidaeNeocrepidodera nigritula
leafhiddenPyralidaeSciota rhenella
leafoviposition scarTenthredinidaePristiphora conjugata
leafgalllarvaRhynchitidaeByctiscus populi
stemvagrantAphididaePterocomma tremulae
leafgallspring generationAphididaePemphigus immunis
leafvagrantAphididaeChaitophorus populeti
leafvagrantsummer generationTortricidaeGypsonoma dealbana
leaf budborerspring generationTortricidaeGypsonoma dealbana
stemborerSesiidaeSesia apiformis
stemgallTortricidaeGypsonoma aceriana
leafvagrantCicadellidaeViridicerus ustulatus
leafvagrantAphididaeChaitophorus populifolii
stemvagrantAphididaePhloeomyzus passerinii
leafdownErysiphalesErysiphe adunca
leafdownErysiphalesPhyllactinia populi
leafgallAphididaePemphigus spyrothecae
leafgallspring generationAphididaePemphigus bursarius
leafgallspring generationAphididaePemphigus populinigrae
leafgallspring generationAphididaeThecabius affinis
leafgallPsyllidaeCamarotoscena speciosa
leafgallTaphrinalesTaphrina populina
leafminerAgromyzidaeAgromyza albitarsis
leafminerAgromyzidaeAulagromyza populi
leafminerAgromyzidaeAulagromyza populicola
leafminerAgromyzidaeAulagromyza tremulae
leafminerChrysomelidaeZeugophora flavicollis
leafminerCurculionidaeIsochnus sequensi
leafminerGracillariidaePhyllocnistis extrematrix
leafminerGracillariidaePhyllocnistis unipunctella
leafminerGracillariidaePhyllonorycter connexella
leafminerGracillariidaePhyllonorycter populifoliella
leafminerLyonetiidaeLeucoptera sinuella
leafminerNepticulidaeEctoedemia hannoverella
leafminerNepticulidaeStigmella trimaculella
leafminerTenthredinidaeHeterarthrus ochropoda
leafminerTortricidaeGypsonoma oppressana
leafoviposition scarTenthredinidaeCladius grandis
leafpustuleuredinia teliaPuccinialesMelampsora allii-populina
leafpustuleuredinia teliaPuccinialesMelampsora laricis-populina
leafvagrantEriophyidaeAculus mogeri
stemgallTortricidaeGypsonoma aceriana
stemvagrantAphididaePterocomma populeum
leafminerGracillariidaePhyllonorycter comparella
leafvagrantAphididaeChaitophorus leucomelas
leafvagrantAphididaeChaitophorus nassonowi


the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.


borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.


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The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.


Last modified 1.v.2021